??
????2???????????????????17?? (?? ???????????)??????17???????????,???,?????????????10??
???????,17?,?,18??,19????????,????20?????????21????????????
??????????????,18???????,??,??????,???:?????????????8???????10??
19??,?,????????:??????????????8???????12??
??????????????,??,???????????????,??????????(??) ???:??????
?????????
???????????? ???????????10??????????????